Magma Marine Dual Grill Table Height Locking Extension Set - 12 If your gunnel or mounting surface is a bit too low, bring your grill or dual mount table to a more convenient height with one of these dual locking socket mount extension sets. Available in either 6 15.2 cm or 12 30.5 cm and constructed of 304 stainless steel tubing for superior corrosion resistance in even the harshest of marine environments. The locking spring clip mechanism secures your grill or table in place while allowing fo